However, if you're determined to do it yourself, here's a general outline. Remember, this is a simplified overview and may not cover all specific nuances of your vehicle. Always consult a repair manual specific to your 1994 Chrysler Concorde for detailed instructions and diagrams.
Before You Begin:
* Safety First: Wear safety glasses, gloves, and a dust mask. Refrigerant is harmful if inhaled.
* Recovery and Recycling: You must recover the refrigerant from the AC system before disconnecting any lines. This requires specialized equipment and is crucial for environmental and safety reasons. A local auto parts store may rent or perform this service.
* Repair Manual: Obtain a repair manual specific to your 1994 Chrysler Concorde. This will provide detailed diagrams, torque specifications, and crucial steps.
* Tools: You'll need a variety of tools including various sockets, wrenches, screwdrivers, a refrigerant recovery machine, possibly a vacuum pump, and possibly specialized AC tools.
General Steps (Highly Simplified):
1. Disconnect the Battery: Disconnect the negative battery terminal to prevent electrical shorts.
2. Refrigerant Recovery: Recover the refrigerant from the AC system using a recovery machine.
3. Access the Evaporator: This usually involves removing parts of the dashboard, which can be quite involved. Your repair manual will guide you through this process, detailing which parts need to be removed and in what order. Expect to disconnect various components like the glovebox, radio, and possibly other interior panels.
4. Disconnect AC Components: Carefully disconnect all hoses, electrical connectors, and other components connected to the evaporator. Label everything meticulously as you go to avoid confusion during reassembly. Take pictures to aid in remembering the process.
5. Remove the Evaporator: Once all connections are disconnected, carefully remove the evaporator core. This might involve removing retaining clips, screws, or bolts.
6. Install the New Evaporator: Install the new evaporator core, ensuring it's properly seated and all connections are secure.
7. Reconnect AC Components: Reconnect all hoses, electrical connectors, and other components in the reverse order of removal.
8. Reassemble the Dashboard: Reassemble the dashboard and all interior components you removed earlier.
9. Vacuum and Recharge the System: After reassembly, you must evacuate the system with a vacuum pump to remove any air and moisture. Then, recharge the system with the correct amount and type of refrigerant using a charging kit. Improper charging can severely damage the system.
10. Test the System: After recharging, test the AC system for proper operation.
Warnings:
* Refrigerant Handling: Improper handling of refrigerant can be dangerous. If you're not experienced with this, have a professional handle it.
* Dashboard Removal: Removing and reinstalling the dashboard is a complex process. Take your time, and refer extensively to your repair manual. Damage to the dashboard during this process is easy.
* Hidden Components: There may be hidden fasteners or components that are not immediately obvious. Carefully examine the area before attempting to remove anything.
This is a highly simplified overview. Do not attempt this repair without a detailed repair manual specific to your 1994 Chrysler Concorde. The complexity and potential for damage make professional repair highly recommended. The cost of a professional repair may be significantly less than the cost of repairing damage caused by an improper DIY attempt.
